“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	higher harmonic waves higher heating value Higher Institute of Brazilian Studies Higher Institute of Theatrical Arts(Egypt) higher Jacobian higher Jacobian scheme higher K group of a ring higher K-group of a ring higher K-theory higher law higher local field higher logarithm function higher mathematics higher-mode coupling higher monosaccharide higher nervous activity higher nuclearity cluster higher-order higher order aberration higher-order approximation higher-order arithmetic higher-order conditioning reflex higher order continuum theory higher-order curve higher-order derivative

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。